<template>
  <div>
    <input
      type="text"
      placeholder="请输入用户名"
    >
  </div>
</template>
<script>

export default {
  name: 'SuperInput' // 组件名
}
</script>

<style scoped>
input {
  border: 1px solid red;
  box-shadow: none;
}
</style>
